Inspector () of Qing Province, recruited Wang Ji to serve as an attendant officer () under him. Later, when Wang Ji was summoned to the imperial capital Luoyang to serve as a librarian (), Wang Ling successfully sought permission from the central government to let Wang Ji remain in Qing Province. Wang Lang, the Minister over the Masses, once asked Wang Ling to transfer Wang Ji to his office in Luoyang. When Wang Ling refused, Wang Lang wrote to the imperial court to accuse Wang Ling of holding back talents: "Street-level officials who have performed exceptionally well should be promoted to commandery level. Commandery-level officials who have shown good performance should be recommended to the central government. This practice originated from the ancient custom of nobles presenting local talents to their rulers. I have never heard of any regional official refusing to allow his subordinates to serve in the central government." Despite Wang Lang's accusation, Wang Ling refused to allow Wang Ji to leave. Throughout his tenure in Qing Province, much of Wang Ling's achievements were actually due to Wang Ji's efforts. Service in the central government Sometime between 230 and 235, Sima Yi, the General-in-Chief () of Wei, summoned Wang Ji to serve under him. Wang Ling had no choice but to let Wang Ji leave. Before Wang Ji reached Sima Yi's office, however, he was quickly reassigned to be a Palace Writer Gentleman (). During his reign from 226 to 239, the Wei emperor Cao Rui started lavish and extravagant palace-building projects. As these projects were labour intensive, they took a heavy toll on the common people, who were recruited as labourers for the projects. Wang Ji wrote a memorial to Cao Rui to advise him to stop the projects: Wang Su was known for writing commentaries and annotations on Confucian texts, as well as for expressing his opinions on imperial protocol, etiquette and customs. His views deviated largely from those of the Confucian scholar Zheng Xuan. As Wang Ji studied and followed Zheng Xuan's teachings, he often challenged and disagreed with Wang Su. Wang Ji was subsequently promoted to the position of Administrator () of Anping Commandery (安平郡; around present-day Hengshui, Hebei). He resigned later because of official reasons. As the Administrator of Anfeng Sometime between 239 and 249, Cao Shuang, the General-in-Chief () of Wei, summoned Wang Ji to serve as an Assistant Gentleman () under